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Roller Press Granulator Production Line

Roller Press Granulator Production Line

 
 
 
 
 
Model: YSL//HP/KP      
 
 
 
 
 
Motor Power: 1-20t/h
Features

 The major equipment of roller press Granulator Production Line is Roller Press Granulator with less power consumption,lower maintenance costs. Huaqiang is China leading granulation produciton line processing plant.     
                                 
Roller press granulator production line is widely used for the production of NPK compound fertilizer. There are more than 20 kinds of materials that have been successfully applied to granulating such as Ammonium nitrate, urea, ammonium chloride and calcium nitrate in nitrogen fertilizer. Phosphate fertilizer includes ammonium phosphate, calcium phosphate, heavy calcium, phosphate rock, potassium chloride and potassium sulfate, and can add trace elements such as boron, iron, copper, zinc, manganese and so on. Extrusion granulation has no special requirements on the granularity of the raw materials, 1-4mm granular materials and fine powdery materials are available, it’s better to use the granularity of powder material and powdery products , and the cost can be reduced with powdery materials.

 

The mainly equipment that the roller press granulator production line include:

1.Batching machine

2.Roller press granulator

3.Crusher Machine

4.Screening machine

5.Coating machine

6.Belt conveyor

7.Packing machine

 

The process of roller press granulator production line:

1.Storage and measurement

Mixed fertilizer raw materials such as urea, ammonium phosphate and potassium chloride are transported from bucket elevator and belt to storage bins.

2.Squeeze

After mixing, the mixture of fertilizers is extruded by roller. The principle is to shape the material through extrusion. The mixture is fed into the gap between the two oppositely rotating rollers through a vertical screw feeder. During the extrusion process, the pressure of the material gradually increases, and when the gap between the two axes is in a very small position,the material is relatively stressed and then gradually decreases until reach zero. 

3.Crushing and screening

The plate formed in the roller press should be further broken, and if you want to reach the demanded particle size, the granules need to be through the screening machine. There is a particular designed plate crusher under the roller press machine, the plates have been crushed the slices by it. The fine particles on the lowest sieve are recycled to the mixer and then extruded. However, the large particles retained on the top of the multi- stage sieve need to be further broken. After crushing, it returns to sieving machine. It’s very important to make a correct choice about the crushing and screening machine, it has a great effect on the economy of the press and granulation system.

4.Polishing and dressing

On usual, the final products need to be through the polishing machine and dressed. Irregular shaped particles are worn round the drum to circle the edges and corners. The fine powder produced during polishing is recycled through screening . When dressing, the anti caking agent is usually added.The final product of the plant is granular fertilizer (1-4mm) within a certain range of granularity.

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